CN111398717A - Early warning sensor for electric power operation monitoring - Google Patents
Early warning sensor for electric power operation monitoring Download PDFInfo
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- CN111398717A CN111398717A CN202010265836.XA CN202010265836A CN111398717A CN 111398717 A CN111398717 A CN 111398717A CN 202010265836 A CN202010265836 A CN 202010265836A CN 111398717 A CN111398717 A CN 111398717A
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- indicator lamp
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention provides an early warning sensor for monitoring power operation, which is convenient for real-time monitoring and networking and is characterized by comprising a current mutual inductance component and a host, wherein the current mutual inductance component and the host are connected through wires, the current mutual inductance component comprises an open-close type current transformer, the host comprises a P L C processor, a Zigbee network module, a matching key, a status indicator lamp, a network indicator lamp and an RS485/232 bus module, the Zigbee network module, the matching key, the status indicator lamp, the network indicator lamp and the RS485/232 bus module are respectively connected with the P L C processor, the status indicator lamp and the network indicator lamp are arranged on the front side of a host shell, the status indicator lamp indicates the state of the sensor in different colors, the network indicator lamp indicates the working state of the Zigbee network module in a lighting, extinguishing or flickering manner, the RS 485/232.
Description
Technical Field
The invention relates to an early warning sensor for monitoring electric power operation.
Background
Common faults in the power operation process include overload, disconnection and the like, the influence on production occasions is huge, and even safety accidents can be caused, so that monitoring and early warning of power operation are very important. Under a normal operation state, the current on a power line is relatively constant or changes within a certain range, and when the current is abnormally interrupted, the fluctuation amplitude is increased, the current is remarkably increased and the like, the power system is obliged to break down.
Disclosure of Invention
Based on the problems mentioned in the background technology, the invention provides an early warning sensor for monitoring power operation, which is convenient for real-time monitoring and networking, and the specific technical content is as follows:
an early warning sensor for monitoring power operation comprises a current mutual inductance component and a host machine, wherein the current mutual inductance component and the host machine are connected through wires, the current mutual inductance component comprises an open-close type current transformer, the host machine comprises a P L C processor, a Zigbee network module, a matching key, a state indicator lamp, a network indicator lamp and an RS485/232 bus module, the Zigbee network module, the matching key, the state indicator lamp, the network indicator lamp and the RS485/232 bus module are respectively connected with the P L C processor, the state indicator lamp and the network indicator lamp are arranged on the front face of a host machine shell, the state indicator lamp indicates the state of the sensor in different colors, the network indicator lamp indicates the working state of the Zigbee network module in a bright, dark or flickering mode, the RS485/232 bus module.
In one or more embodiments of the present invention, the P L C processor is connected to the current transformer through an isolation circuit, the isolation circuit includes an optical coupling module, an input side of the optical coupling module is connected to an output terminal of the rectifier bridge, and an output side of the optical coupling module is connected to the P L C processor.
In one or more embodiments of the present invention, a plurality of mounting lugs are disposed on a side portion of the main housing, and mounting holes are disposed on the mounting lugs.
In one or more embodiments of the present invention, the bottom surface of the host casing is provided with an adhesive tape.
In one or more embodiments of the present invention, the current transformer includes a lower assembly and an upper assembly pivoted and turned with respect to the lower assembly, one end of the upper assembly is hinged to the lower assembly, the other end of the upper assembly is provided with a screw seat matched with the lower assembly, the lower portion of the upper assembly and the upper portion of the lower assembly are respectively provided with a semicircular groove, and the two are in a ring shape after being fastened.
The invention has the beneficial effects that: the open-close type current transformer is adopted, the assembly can be completed and the current change can be monitored without disassembling and assembling a power line, the current transformer component is small in size and is connected with the host machine through the power line, the host machine is flexibly suitable for various installation angles and spaces, the host machine is fixed through screws or adhesive tape, and the installation environment is influenced to a small extent; the invention also sets two networking modes of Zigbee and RS485/232, especially Zigbee networking can solve the problems of no network wiring on site or too far distance between a network interface and an installation position, and the like, is convenient for constructing a local area monitoring network on site, can also realize accurate positioning according to a Zigbee protocol, and is convenient for overhauling or upgrading a program of the sensor.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an electrical schematic of the present invention.
Fig. 3 is a schematic diagram of an isolation circuit of the present invention.
Detailed Description
The scheme of the present application is further described below with reference to the accompanying drawings 1 to 3:
an early warning sensor for monitoring electric power operation comprises a current mutual inductance component 1 and a host 2, wherein the current mutual inductance component 1 and the host 2 are connected through a wire 3, the current mutual inductance component 1 comprises an open-close type current transformer 11, assembling and current change monitoring can be completed without disassembling and assembling a power line, the current mutual inductance component 1 is small in size and connected with the host through a wire and flexibly adapts to various installation angles and spaces, the host 2 comprises a P L C processor 21, a Zigbee network module 22, a matching key 23, a status indicator lamp 24, a network indicator lamp 25 and an RS485/232 bus module 26, the status indicator lamp 24 and the network indicator lamp 25 are arranged on the front face of a shell, the status indicator lamp 24 indicates the state of the sensor in different colors, for example, green indicates that the sensor is normally powered on and is not abnormal, red indicates that the sensor has a fault or processes a self-checking and routing self-recovering state, the network indicator lamp 25 indicates the working state of the network module 22 in a lighting, networking or networking mode, for conveniently installing a network indicator lamp 25, and a remote network indicator lamp 27 is arranged according to the remote monitoring and a remote network positioning and positioning protocol.
The P L C processor 21 is connected with the current transformer member 1 through an isolation circuit 27, the isolation circuit 27 comprises an optical coupling module, the input side of the optical coupling module is connected with the output end of a rectifier bridge, the output side of the optical coupling module is connected with the P L C processor 21, the current transformer member 1 comprises a lower assembly 101 and an upper assembly 102 pivoted and turned relative to the lower assembly 101, one end of the upper assembly 102 is hinged with the lower assembly 101, the other end of the upper assembly is provided with a screw seat 103 matched with the lower assembly 101, the lower part A of the upper assembly 102 and the upper part B of the lower assembly 101 are respectively provided with a semicircular groove, and the semicircular grooves are buckled and form a ring shape, for the current transformer member 1, an open-close type current transformer produced by Xiitai-Techeng-Technique limited company in Xiita-Zheng-Tegao-Seiko is purchased, the side part of the main machine shell is provided with a plurality of installation lugs 28, the installation holes 280 are arranged on the installation lugs 28.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (5)
1. The early warning sensor for monitoring the power operation is characterized by comprising a current mutual inductance component and a host, wherein the current mutual inductance component and the host are connected through wires, the current mutual inductance component comprises an open-close type current transformer, the host comprises a P L C processor, a Zigbee network module, a matching key, a status indicator lamp, a network indicator lamp and an RS485/232 bus module, the Zigbee network module, the matching key, the status indicator lamp, the network indicator lamp and the RS485/232 bus module are respectively connected with the P L C processor, the status indicator lamp and the network indicator lamp are arranged on the front face of a host shell, the status indicator lamp indicates the state of the sensor in different colors, the network indicator lamp indicates the working state of the Zigbee network module in a lighting, extinguishing or flickering mode, the RS485/232 bus module is provided with.
2. The warning sensor for monitoring the power operation as claimed in claim 1, wherein the P L C processor is connected with the current transformer through an isolation circuit, the isolation circuit comprises an optical coupling module, the input side of the optical coupling module is connected with the output end of the rectifier bridge, and the output side of the optical coupling module is connected with the P L C processor.
3. The warning sensor for monitoring electric power operation according to claim 1, wherein: the lateral part of host computer casing is equipped with a plurality of installation ears, be equipped with the mounting hole on the installation ear.
4. The warning sensor for monitoring electric power operation according to claim 1, wherein: and the bottom surface of the host shell is provided with a sticky glue paste.
5. The warning sensor for monitoring electric power operation according to any one of claims 1 to 4, wherein: the current mutual inductance component comprises a lower component and an upper component pivoted and turned relative to the lower component, one end of the upper component is hinged with the lower component, the other end of the upper component is provided with a screw seat matched with the lower component, the lower part of the upper component and the upper part of the lower component are respectively provided with a semicircular groove, and the upper component and the lower component are buckled to form a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265836.XA CN111398717A (en) | 2020-04-07 | 2020-04-07 | Early warning sensor for electric power operation monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010265836.XA CN111398717A (en) | 2020-04-07 | 2020-04-07 | Early warning sensor for electric power operation monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111398717A true CN111398717A (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010265836.XA Pending CN111398717A (en) | 2020-04-07 | 2020-04-07 | Early warning sensor for electric power operation monitoring |
Country Status (1)
| Country | Link |
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| CN (1) | CN111398717A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913619A (en) * | 2012-12-30 | 2014-07-09 | 航天信息股份有限公司 | Current monitoring system and method based on wireless sensor network |
| CN109324257A (en) * | 2018-09-07 | 2019-02-12 | 国网浙江慈溪市供电有限公司 | Residual current on-Line Monitor Device |
| CN110554349A (en) * | 2019-08-22 | 2019-12-10 | 安徽信息工程学院 | Fault early warning device for current transformer |
| CN209894890U (en) * | 2018-12-16 | 2020-01-03 | 国网新疆电力有限公司乌鲁木齐供电公司 | Grounding current on-line monitoring device for grounding iron core of transformer based on PLC |
-
2020
- 2020-04-07 CN CN202010265836.XA patent/CN111398717A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913619A (en) * | 2012-12-30 | 2014-07-09 | 航天信息股份有限公司 | Current monitoring system and method based on wireless sensor network |
| CN109324257A (en) * | 2018-09-07 | 2019-02-12 | 国网浙江慈溪市供电有限公司 | Residual current on-Line Monitor Device |
| CN209894890U (en) * | 2018-12-16 | 2020-01-03 | 国网新疆电力有限公司乌鲁木齐供电公司 | Grounding current on-line monitoring device for grounding iron core of transformer based on PLC |
| CN110554349A (en) * | 2019-08-22 | 2019-12-10 | 安徽信息工程学院 | Fault early warning device for current transformer |
Non-Patent Citations (1)
| Title |
|---|
| 华东电业管理局: "《电力工程电工手册 第2分册》", 30 April 1991 * |
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